Aerodynamic force

Source: Wikipedia, the free encyclopedia.
The aerodynamic force is the resultant vector from adding the lift vector, perpendicular to the flow direction, and the drag vector, parallel to the flow direction.
aerofoil
.

In

relative motion
between the body and the gas.

Force

There are two causes of aerodynamic force: [1]: §4.10 [2][3]: 29 

Pressure acts normal to the surface, and shear force acts parallel to the surface. Both forces act locally. The net aerodynamic force on the body is equal to the pressure and shear forces integrated over the body's total exposed area.[4]

When an

components, both acting through the center of pressure:[3]: 14 [1]
: § 5.3 

In addition to these two forces, the body may experience an aerodynamic

moment
.

The force created by

propellers and jet engines is called thrust, and is also an aerodynamic force (since it acts on the surrounding air). The aerodynamic force on a powered airplane is commonly represented by three vectors: thrust, lift and drag.[3]: 151 [1]
: § 14.2 

The other force acting on an aircraft during flight is its weight, which is a body force and not an aerodynamic force.

See also

References

  1. ^
    OCLC 16420565
    .
  2. OCLC 40928151
    .
  3. ^ a b c Hurt, H.H. Jr. (1965). Aerodynamics for Naval Aviators NAVAIR 00-80T-80 (PDF). U.S. Navy. pp. 14, 29, 151.
  4. OCLC 40076736
    .
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